3 ms·
Can some explain? "Biasing" the "vacuum" means its no longer vacuum, but higher fock states, no? You've filled the vacuum with photons. May be this is just a te
by noobermin 3y ago
Can some explain? "Biasing" the "vacuum" means its no longer vacuum, but higher fock states, no? You've filled the vacuum with photons. May be this is just a terminology issue for me.
- derbOac 3y agoI think the idea is that even in a vacuum there are inherent fluctuations in electromagnetic field. They're adding fluctuations that are comparable to the background but slightly different; to maintain conservation of energy the vacuum fluctuations have to shift in response (I think? I'm not an expert in this area). I guess one way of thinking about it is that at the quantum level there's no true vacuum in a classical sense.